NPPES file of Aug 9, 2026

Walter John Giblin, M.D.

Dermatology Physician · Rockville, MD

Walter John Giblin, M.D. is a dermatology physician with a practice address in Rockville, Maryland, and NPI 1831276757, issued on Nov 1, 2006. Check the license (Maryland D0042867, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1831276757
Name
Walter John Giblin
Credential
M.D.
Primary taxonomy
Dermatology Physician 207N00000X
License number
D0042867 MD
Self-reported in NPPES; status is on the state search
Practice location
15225 Shady Grove RD, Rockville, MD 20850
Phone
(301) 216-2980
Enumerated
Nov 1, 2006
Record last updated
Dec 18, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(301) 216-2982
Medicaid ID
756841000 MD
Medicare enrollment
Enrolled (PECOS I20100921001359); accepts Medicare assignment
Medical or professional school
Georgetown University School Of Medicine, 1984
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 15225 Shady Grove RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ed Ashtar, M.D., F.A.C.P.Hematology & Oncology Physician1043201817
  2. Alexander Asser, M.D.Clinical Cardiac Electrophysiology Physician1861656670
  3. Jason Badillo, P.A.Physician Assistant1396770202
  4. Jay Bernstein, MDPediatrics Physician1316946395
  5. Alan Chanales, MDPulmonary Disease Physician1093719023
  6. Michael Chen, M.D.Interventional Cardiology Physician1184650954

Verify Walter John Giblin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D0042867
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Maryland license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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32% more Medicare Part D claims than the average dermatology physician in 2024

1,051 Medicare Part D claims for 454 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.

  1. Walter Giblin1,051
  2. Specialty average797

Most prescribed

  1. Triamcinolone Acetonide165 claims
  2. Ketoconazole137 claims
  3. Clobetasol Propionate110 claims
  4. Betamethasone Diprop Augmented72 claims
  5. Fluorouracil52 claims
  6. Betamethasone Dipropionate48 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualitynot scored (reweighted)
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $512.64

19 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Walter Giblin$512.64
  2. Specialty average$8,544.61

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Anne Arundel Dermatology PARockville, MD

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Walter John Giblin among 341 dermatology physician records in Maryland

Walter John Giblin, M.D. is one of 341 dermatology physician records with a practice address in Maryland. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.

  • NPI issued2006 · 10% of these records are older, 56% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated1984 · median 2005 among the 241 with a school on file
  • Record last updated2019 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dermatology Physician providers in Maryland

There are 341 dermatology physician records in Maryland.

The 8 dermatology physician records with the nearest ZIP codes

  1. Jay Barnett, M.D.Rockville, MD 208501396724779
  2. Sanders Berk, M.D.Rockville, MD 208501053310789
  3. Sunghun Cho, M.D.Rockville, MD 208501851368518
  4. Todd Colonna, MDRockville, MD 208501306826102
  5. Timothy Curtin, MDRockville, MD 208501316904485
  6. Max Gratrix, M.D.Rockville, MD 208501275737710
  7. Stephen Krivda, MDRockville, MD 208501407951361
  8. Laura Marquart, MDRockville, MD 208501679643837

Common questions

What is Walter John Giblin, M.D.'s NPI number?

Walter John Giblin, M.D.'s National Provider Identifier (NPI) is 1831276757, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Walter John Giblin, M.D. located?

The NPPES record lists a practice address at 15225 Shady Grove RD, Rockville, MD, 20850. Phone: (301) 216-2980. Providers update this record themselves, so call before visiting.

How can I verify Walter John Giblin, M.D.'s license?

NPPES lists Maryland license number D0042867, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Walter John Giblin, M.D. prescribe under Medicare Part D?

In 2024, Walter John Giblin, M.D. had 1,051 Medicare Part D claims for 454 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.

What is Walter John Giblin, M.D.'s MIPS final score?

The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.